Custom Code and InstallAnywhere Variables
For information on variables, please see the section on InstallAnywhere variables (see Chapter 4 and Appendix A). Custom code can both get and set InstallAnywhere variables. This ability can be useful in two cases.
A project can set InstallAnywhere variables, which can be used as parameters for custom code. For example, if a custom code action is designed to know the directory to which the end-user is installing, use the Set InstallAnywhere Variable action to set PARAM_1 to $USER_ INSTALL_DIR$. Then, in the custom code action, call InstallerProxy. substitute("$PARAM_1$") to determine its value.
InstallAnywhere variables may also be used to store return values from custom code actions. These variables can ...
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